Have you given any thought to switching to a LTSC version of Windows 10 Enterprise? There are a few trade-offs from what I can see, but at least it eliminates the issue of no security updates for up to 5 more years.

I’m still mulling over the pro’s and con’s - curious on what you think.

It’d hopefully allow you to keep Civ6 multiplayer going for the time being until (if/when) the Linux issues get solved?